The Pythagorean theorem solves c = √(a²+b²) for the hypotenuse from two legs — ladders, ramps, screen diagonals. A 3-4-5 triangle reads c = 5.00 on site — free, runs locally.
Content reviewed October 2026 · About Toolzum
Simplify any two-number ratio to lowest terms via GCD — paint mixes, screen sizes, shares. Reduce 150:225 to 2:3 in one pass — free, runs locally.
Get any image or screen's aspect ratio in reduced form with common-ratio matching — 16:9, 4:3, 1:1 and custom. Check a 1920×1080 screen reads 16:9 — free, runs locally.
Compute trigonometry: sin, cos, tan in degrees or radians with triangle solving. Find the opposite side from 30° hypotenuse 10 (= 5) — free, local, no signup.
Generates a browser extension that captures browser tabs, full screens, or specific application windows with configurable resolution, frame rate. No signup or account required.
Combines two or more PDF files into one contiguous document with up/down buttons to order the input list. Legal assistants compiling.
Measure 3 units along one wall, 4 along the other: a square corner spans exactly 5 between marks. Enter the two legs here to get the hypotenuse before cutting material.
No — both inputs are legs and only the hypotenuse is solved. Rearrange c²−a² under a root by hand when a leg is the unknown.
No three-side check — the tool takes two legs and returns the hypotenuse. Confirm angles with a known triple instead.
No — solving runs locally in your browser. Numbers never leave your device.
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